CN105313946B - Steering mechanism for motor vehicle - Google Patents
Steering mechanism for motor vehicle Download PDFInfo
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- CN105313946B CN105313946B CN201410264611.7A CN201410264611A CN105313946B CN 105313946 B CN105313946 B CN 105313946B CN 201410264611 A CN201410264611 A CN 201410264611A CN 105313946 B CN105313946 B CN 105313946B
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- ratch
- steering
- tooth section
- little gear
- steering mechanism
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Abstract
The present invention relates to a kind of steering mechanism for motor vehicle, with a transfer shell, steering ratch is installed in a movable manner in the shell, in order to allow steered wheel to swing, turn to ratch and wheel is attached, wherein, turning to ratch has the first tooth section, the first tooth section is mutually engaged with the first steering little gear of pinion shaft, pinion shaft is directly connected by input shaft with steering wheel, turning to ratch has the second tooth section, the second tooth section is mutually engaged with the second little gear, wherein, turning to ratch has the 3rd tooth section, 3rd tooth section is relative based on the longitudinal axis for turning to ratch with the second tooth section, there is third pinion simultaneously, the little gear is mutually engaged with the 3rd tooth section.
Description
Technical field
The present invention relates to a kind of steering mechanism, more particularly to a kind of steering mechanism for motor vehicle.
Background technology
For larger and heavier vehicles such as so-called intermediate car, luxurious car, offroad vehicle and light commercial vehicles, one is illustrated
The structure type for the motor vehicle electronic assisted power steering system that kind preferentially uses, for the form, power steering passes through second
Individual little gear is conducted to steering ratch.A kind of steering mechanism is additionally, there may be, for the structure, except turning to little gear
Occlusion is outer, is additionally provided with a spherical threaded on ratch is turned to, this is threaded through a spherical threaded little gear and is connected with servomotor.
Herein, power steering is conducted to steering ratch by spherical threaded.Thus reduce the load for turning to little gear.Comprising to turning to
The steering mechanism of the spherical threaded little gear of ratch effect is relatively expensive.
A kind of compact cheap steering mechanism of little gear is disclosed in DE102010027553A1, for the machine
For structure, turning to ratch has the first tooth section and the second tooth section relative with the first tooth section along the ratch longitudinal axis is turned to, wherein turning to
Little gear is mutually engaged with the first tooth section, and second little gear by servomotor driving is mutually engaged with the second tooth section.Pass through two
The cramped construction of little gear, expensive cushion block can be cancelled.But because assist torque is conducted to input shaft region, therefore its
The free degree of structure space is by larger limitation.
The content of the invention
The task of the present invention is that create a kind of steering mechanism, the steering mechanism has the higher structure space free degree,
And the power steering needed for heavy vehicle can be provided.
The invention provides a kind of steering mechanism for motor vehicle, comprising a transfer shell, in the housing
One steering ratch is installed in a manner of it can move longitudinally, to be swung, the steering ratch is connected with wheel, wherein, turn
There is the first tooth section to ratch, the first tooth section is mutually engaged with the first steering little gear of pinion shaft, and pinion shaft passes through
Input shaft is directly connected with steering wheel；Turning to ratch has the second tooth section, and the second tooth section is mutually engaged with the second little gear；Turn
Also there is the 3rd tooth section to ratch, the 3rd tooth section is relative with the second tooth section on the longitudinal axis for turning to ratch；The use simultaneously
Third pinion is provided with the steering mechanism of motor vehicle, the third pinion and the 3rd tooth section are mutually engaged.By setting three
Little gear, it can flexibly carry out very much building its structure space.Steering needed for preferentially being applied by least one motor
Power-assisted, the motor and the second little gear and/or third pinion are engaged.
It is that the second tooth section and the 3rd tooth section are arranged in the second steering ratch section, and the first tooth section is set than more advantageous method
Put with second turn to ratch it is intersegmental at a certain distance first turn to ratch section in.It is empty that the structure can form higher structure
Between the free degree because assist torque will not be conducted to input shaft region.
In a kind of form of implementation, the second little gear is driven by the first motor, and third pinion is driven by the second motor
It is dynamic.
The steering mechanism that the form of implementation turns to for Steer-by-Wire (line traffic control) is particularly advantageous.
Especially preferential method is that the rotary shaft of two relative little gears is mutually set in wedge angle, and two are turning to tooth
It is arranged on bar relative to the steering ratch section of the longitudinal axis into arranged relative in the plane being mutually inclined, because which will be by that will turn
Gapless teeth portion occlusion can be realized by carrying out prestressing force in angle to ratch.It is appreciated that and be accomplished that, two are relative
The rotary shaft of little gear is arranged in parallel.In such a case it is possible to design special cushion block, the cushion block can exclude teeth portion it
Between gap, teeth portion is engaged under prestress.To this can use the tight mounting technique of pinion shaft elastic pre-tensioning or its
His technology, such as the disclosed gap elimination technique in turbine steering mechanism.
If turning to ratch at least has a guider in the second steering ratch section region, the guider and at least
One director element collective effect cause turn to ratch along it is parallel or into angle mutually be arranged on turn to little gear rotation
Axle moves, and turning to little gear be able to can be adjusted almost without axial force, gap, and steering ratch can accurately enter
Row control.
It can be designed to, the first steering ratch section region has at least one guider, the guider and at least one
Individual director element collective effect make it that turning to rotation direction of principal axis of the ratch along the first steering little gear moves.
Brief description of the drawings
It will be hereinafter described in detail according to implementation example of the drawing to foregoing invention.Identical element or
Function identical element uses identical label.Wherein：
Fig. 1 is with two little gears and two motors and the steering mechanism's schematic diagram for turning to little gear；
Fig. 2 is the steering mechanism view similar with Fig. 1；
Fig. 3 is another view of Fig. 2 steering mechanism；
Fig. 4 is the steering spindle longitudinal section with torsion sensor；
Fig. 5 is steering mechanism's space schematic diagram of two little gears of band and a motor.
Phase same-action or the element of same type use identical label in different implementation examples, in order to understand.
Embodiment
Fig. 1 is with two little gears and two motors and the steering mechanism's schematic diagram for turning to little gear, containing side
To disk 1, direction disk 1 and top steering spindle 2 and lower steering shaft 3 are linked together in a manner of non-rotatable.Bottom turns to
Axle 3 is further linked together with the first steering little gear 4 in a manner of non-rotatable.First turns to little gear 4 with public
The mode opened mutually is engaged with the first tooth section 5 for turning to ratch 6.Ratch 6 is turned to install in a movable manner in direction along its longitudinal axis
In transfer shell.In its free end, cone friction gear and track rod 7 of the ratch 6 by not specified (NS) are turned to
It is connected.Track rod 7 is connected with the steered wheel 8 of a motor vehicle respectively in a manner of disclosed by axle journal.Direction
The connection formation that the rotation of disk 1 turns to little gear 4 by top steering spindle 2 and lower steering shaft 3 and first turns to ratch 6
Vertically move, be consequently formed the swing of steered wheel 8.Steered wheel 8 forms an acting in opposition by moving track 9, and this is anti-
Inversely moved to effect in steering.A power is needed in order to allow steered wheel 8 to swing, the power needs accordingly on steering wheel 1
Turning moment.Provided with two servomotors 10,11, to provide power-assisted when turning to mobile for driver.Servomotor 10,11
Direction of rotation and turning moment be controlled by the torsion sensor 12 in steering spindle.Servomotor 10,11 helps steering
Power is passed to by the second little gear 13 or third pinion 15 and turns to ratch 6, the second little gear 13 and the phase of the second tooth section 14
Occlusion, third pinion 15 are mutually engaged with the 3rd tooth section 16.First tooth section 5 is located in the first ratch section 17, and second and the 3rd tooth
In the second ratch section 18 that section 14,16 is located at and the first ratch section is separated by a certain distance.In addition, second and the 3rd tooth section 14,16
Both sides relative on ratch 6 are arranged on, wherein, the 3rd tooth section 16 is located at and the identical ratch side of the first tooth section 5.Second little gear
13 rotary shaft 131 (phantom shaft) and the rotary shaft 151 (phantom shaft) of third pinion 15 are arranged in parallel in this example.
Little gear 13,15 can be reduced by the pre-tensioning element of not specified (NS) and/or the eccentric stent of the axle of little gear 13,15 and turned to
Second tooth section 14 of ratch 6, flank of tooth gap of the 3rd tooth section 16 during transmission is engaged.Pinion shaft can also be selected mutual
Into the structure of angle.
A pair steering assistance drive area similar with Fig. 1 has carried out more detailed description in figs. 2 and 3.Turn to ratch 6
There is broadly square cross section in the second relative tooth section 14 and the region of the 3rd tooth section 16.Second tooth section 14 and the 3rd tooth
Section 16, which is arranged on, turns to 6 two relative sides of ratch.In the specific form of implementation, the second tooth section 14 and the 3rd tooth section 16
About 10 degree of angle is formed, so that the plane that the second tooth section 14 and the 3rd tooth section 16 are formed is at servomotor 10,11
See and interconnect.Correspond to therewith, the rotary shaft 131 of the second little gear 13 and the rotary shaft 151 of third pinion 15 with
What is had differences shown in Fig. 1 is to be configured between each other into angle.Drive end one end of little gear 13 and 15 and servo are driven
Dynamic device 10 is connected, and the other end is connected with servo drive 11, and has between each other than turning to little gear 13 and 15 freely
The bigger distance in end.Between the second tooth section 14 and the 3rd tooth section 16, turning to ratch 6 has two relative guiders 19,
The guider form is cannelure, and is distributed in the tooth section longitudinal direction for turning to ratch.Guider 19 is parallel to the second tooth section 14
Moved with the 3rd tooth section 16.Director element 20 fixed with transfer enclosure location, in steering mechanism is with leading
It is engaged to the phase of device 19, the director element is oriented to turning to ratch 6.Turn to ratch 6 and it is fixed on by director element 20
In vertical direction, that is, it is fixed on the relative position with the rotary shaft of little gear 13 and 15.By this way, the second little gear 13 and
The flank of tooth gap of teeth portion occlusion between two tooth sections 14 and the tooth section 16 of third pinion 15 and the 3rd can be adjusted to defined
Smaller value, even zero.The regulation uses the little gear 13 and 15 of v-shaped structure., can by the flexible member of not specified (NS) herein
To form the corresponding prestressing force for reducing flank of tooth gap.
Torsion sensor 12 is illustrated in Figure 4, with the torsion being arranged between steering spindle and the first steering little gear 4
Rod 21.The rotation of steering wheel 1 causes steering spindle to be rotated, and is reversed so that reversing rod 21.The torsion is twisted passing
Sensor identifies, and is conveyed to steering controller.The controller thereby determines that out the correctly control numerical value of servomotor 10,11.Turn
Numerical value is determined according to the torsion for reversing rod 21 to power power-assisted.
The implementation example only with only one servomotor is shown in Fig. 5.
In Figure 5, servomotor 11 drives third pinion 15, wherein, the second little gear 13 passes through gear drive
A tooth be driven.Only schematically illustrate herein, the second little gear 13 is connected with first gear 22 in a manner of non-rotatable
Together, and third pinion 15 and second gear 23 are linked together in a manner of non-rotatable.First gear 22 and second
Gear 23 is mutually twisted.Two gears have identical circumference, therefore the second little gear 13 and the anglec of rotation of third pinion 15
Speed is identical.This point is for the second little gear 13 and the second tooth section 14 and third pinion 15 and the phase similar shape of the 3rd tooth section 16
It is required to for the occlusion of shape.Also provided in another form of implementation, the tooth occlusion for turning to the both sides of ratch 6 has different shapes
The little gear of shape, especially two has different circumference or rolling circumference.To this must by the gear that accordingly matches or
Other sychronisations synchronize.
Such as Fig. 3, shown in Fig. 5, except director element 20, this is in the occlusal area of the first steering little gear 4 and steering ratch 6
Domain also has a guider 24 and the director element 25 fixed, be arranged in steering mechanism with steering mechanism enclosure location simultaneously
And one with first turn to the opposite side of little gear 4 steering ratch guider 26.As the present art is public
Shown in the content opened, guider 26 can also be made up of cushion block.A kind of form of implementation can certainly be provided, for the implementation
Cancel the cushion block for adjusting little gear/steering ratch interocclusal clearance for form.
Provided according to the form of implementation of Fig. 5 another kinds steering mechanism, the little gear 13 of first gear 22 and second is fixedly mounted
It is connected in steering mechanism's shell, and with the second little gear 13, and being arranged in for second gear 23 and third pinion 15 is smaller
In the range of be removable frame, it is hereby ensured that the wheelbase between the second little gear 13 and third pinion 15 for can parameter
Value.By suitable elastic device, described steering mechanism can be caused to keep gapless state.Thus, in process of production
The tolerance for needing to observe is increased, and this can simplify production process.
Above-mentioned picture should be noted that is not limited to specific transmission device form and driving according to the object of the present invention
Device.Second and third pinion driven by any type of transmission device with one or two servomotors
It is dynamic.
Can be certain at second steering little gear interval being mutually engaged with steering ratch according to the steering mechanism of the present invention
The ratch section regional choice that turns to of distance has the steering support device of one or two servomotors, so that turning machine
Structure can apply extra high assist torque while with flexible structure space form.
It is suitable for the line traffic control without mechanical connection between steering wheel and steering mechanism according to the steering mechanism of the present invention to turn
To system.On the other hand, according to Fig. 1,2,3 form of implementation with two separate motors can provide larger superfluous
Remaining, this point is for line control system than advantageous.One in two motor when breaking down, another motor can be with
Ensure work in emergency circumstances.This point is in parking and when needing all driving powers of steering in low vehicle speeds
It is especially important.
Claims (6)
1. for the steering mechanism of motor vehicle, there is a transfer shell, install in a movable manner in the housing
There is a steering ratch (6), the steering ratch (6) and wheel is attached so that steered wheel is swung, wherein, steering ratch (6)
With the first tooth section (5), the first tooth section (5) is mutually engaged with the first steering little gear (4) of pinion shaft, and pinion shaft leads to
Input shaft (2) is crossed directly with steering wheel (1) to be connected, turning to ratch (6) has the second tooth section (14), the second tooth section (14) and
Second little gear (13) is mutually engaged, it is characterised in that turning to ratch (6) has the 3rd tooth section (16), the 3rd tooth section (16)
It is relative to be based on turning to the longitudinal axis of ratch (6) with the second tooth section (14), while the steering mechanism for motor vehicle has
Third pinion (15), the third pinion (15) are mutually engaged with the 3rd tooth section (16)；
Described first turn to little gear (4) and it is described steering ratch (6) engagement region with one with described first turn
To the cushion block of little gear (4) opposite side.
2. the steering mechanism for being used for motor vehicle according to claim 1, it is characterised in that there is at least one motor,
The motor and the second little gear (13) and/or third pinion (15) are mutually engaged.
3. the steering mechanism for being used for motor vehicle according to claim 1, it is characterised in that the second tooth section (14) and the 3rd tooth
Section (16) is arranged in the second steering ratch section (18), and the first tooth section (5) is arranged on turns to ratch section (18) interval one with second
The first of set a distance is turned in ratch section (17).
4. it is used for the steering mechanism of motor vehicle according to any one of the claims 1-3, it is characterised in that second is small
Gear (13) is driven by the first motor (10), and third pinion (15) is driven by the second motor (11).
5. the steering mechanism for being used for motor vehicle according to claim 4, it is characterised in that steering mechanism is steering-by-wire system
The building block of system.
6. it is used for the steering mechanism of motor vehicle according to any one of the claims 1-3, it is characterised in that at least one
Individual motor (10,11) is controlled by the torsion sensor (12) in steering spindle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410264611.7A CN105313946B (en) | 2014-06-13 | 2014-06-13 | Steering mechanism for motor vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410264611.7A CN105313946B (en) | 2014-06-13 | 2014-06-13 | Steering mechanism for motor vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105313946A CN105313946A (en) | 2016-02-10 |
| CN105313946B true CN105313946B (en) | 2018-04-06 |
Family
ID=55242508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410264611.7A Active CN105313946B (en) | 2014-06-13 | 2014-06-13 | Steering mechanism for motor vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105313946B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107054444A (en) * | 2017-05-03 | 2017-08-18 | 河南职业技术学院 | Steering machine and automobile steering system |
| CN110356472B (en) * | 2019-07-12 | 2021-11-26 | 辽宁龙马安泰网络技术有限责任公司 | Method for detecting steering system clearance angle by specified steering force |
| CN112606898A (en) * | 2020-12-10 | 2021-04-06 | 东风汽车集团有限公司 | Shaft type electric power steering device and motor vehicle |
| CN112722058A (en) * | 2021-01-18 | 2021-04-30 | 内蒙古农业大学 | Steering mechanism of racing car |
| CN114954630A (en) * | 2021-02-24 | 2022-08-30 | 本田技研工业株式会社 | Front structure of vehicle |
| CN114104088B (en) * | 2021-12-23 | 2023-03-24 | 中汽创智科技有限公司 | Steering system and vehicle |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040045387A1 (en) * | 2002-09-06 | 2004-03-11 | Visteon Global Technologies, Inc. | Barrel-shaped pinion |
| CN100572164C (en) * | 2005-02-14 | 2009-12-23 | 丰田自动车株式会社 | Turning facilities |
| US20060278466A1 (en) * | 2005-06-13 | 2006-12-14 | Bo Cheng | Electric power steering systems |
| JP5076564B2 (en) * | 2007-03-09 | 2012-11-21 | 日産自動車株式会社 | Drive control device and steering control device using the same |
| DE102010027553B4 (en) * | 2010-07-19 | 2015-05-28 | Thyssenkrupp Presta Aktiengesellschaft | Steering gear with double pinion |
| EP2857285B1 (en) * | 2012-10-24 | 2017-06-28 | Jtekt Corporation | Steering system |
| CN103754256B (en) * | 2014-01-24 | 2016-01-06 | 中国石油大学(华东) | A kind of have adjustable the electronlmobil steering swivel system and the control method that turn to pattern |
-
2014
- 2014-06-13 CN CN201410264611.7A patent/CN105313946B/en active Active
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| Publication number | Publication date |
|---|---|
| CN105313946A (en) | 2016-02-10 |
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